The Sera Ph-Minus adjusts the pH value.

• Adjusts the carbonate hardness.
• Some fish species (e.g. discus and angelfish) have adapted to very soft water and require similar conditions to reproduce. However, the water may have a high carbonate hardness (KH), or the pH may have increased significantly due to metabolic processes, even when other fish species are maintained.
• The pH and KH values are immediately and accurately reduced and adjusted.
• This creates suitable maintenance conditions that significantly contribute to the vitality and well-being of the fish.
• Adjust the carbonate hardness, KH, to 4°dKH with sera pH/KH-minus and then use sera super peat in the filter for permanent maintenance of tropical soft water conditions.